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9.   Ancient cyanobacteria released ______, which assisted in creating the atmosphere as we know it today.      A. ore B. hydrogen C. oxygen D. lead
Ancient cyanobacteria released oxygen , which assisted in creating the atmosphere as we know it today.
biank1989|Points 238|
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Asked 1/13/2015 10:08:55 PM
Updated 1/14/2015 5:19:54 AM
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This answer has been confirmed as correct and helpful.
Edited by jeifunk [1/14/2015 5:19:40 AM], Confirmed by jeifunk [1/14/2015 5:19:54 AM]
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In addition to being necessary for respiration, _______ also provides UV radiation protection.      A. hydrogen B. carbon dioxide C. water D. oxygen
Weegy: In addition to being necessary for respiration, oxygen also provides UV radiation protection. (More)
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Updated 12/5/2017 6:59:33 AM
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A natural resource that is mined for profit is called      A. topsoil. B. aggregate. C. ore. D. sand.
Weegy: A natural resource that is mined for profit is called ORE. (More)
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Updated 338 days ago|3/21/2018 9:17:06 AM
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5.   When new clay sediment is deposited on top of old beach material, it's known as      A. regression. B. transgression. C. progression. D. aggression.
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Updated 12/29/2017 10:21:28 AM
1 Answer/Comment

When new clay sediment is deposited on top of old beach material, it's known as Transgression.

Added 12/29/2017 10:21:28 AM
This answer has been confirmed as correct and helpful.
  The resources that are provided by Earth are known as _______ resources.      A. nonrenewable B. natural C. synthetic D. renewable
Weegy: The resources that are provided by Earth are known as NATURAL resources. (More)
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Updated 277 days ago|5/21/2018 11:49:14 AM
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Small fragments of orbiting bodies that have fallen on Earth's surface are known as      A. zirconium. B. meteorites. C. asteroids. D. uranium.
Weegy: Small fragments of orbiting bodies that have fallen on Earth's surface are known as Meteorites. (More)
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Updated 334 days ago|3/25/2018 11:57:40 AM
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